docs: def run(self):
          """Delegate control over to this App instance.  This function will
          process all events and send them to the special methods ev_* and key_*.
  
          A call to :any:`App.suspend` will return the control flow back to where
          this function is called.  And then the App can be run again.
          But a single App instance can not be run multiple times simultaneously.
          """
          if getattr(self, '_App__running', False):
              raise _tdl.TDLError('An App can not be run multiple times simultaneously')
          self.__running = True
          while self.__running:
              self.runOnce()